chr6-24415051-A-G

Position:

• chr6-24415051-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_020662.4(MRS2):​c.607A>G​(p.Lys203Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: MRS2 NM_020662.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.56

Genes affected

MRS2 (HGNC:13785): (magnesium transporter MRS2) Enables magnesium ion transmembrane transporter activity. Involved in mitochondrial magnesium ion transmembrane transport. Located in mitochondrion. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.18318161).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MRS2	NM_020662.4	c.607A>G	p.Lys203Glu	missense_variant	6/11	ENST00000378386.8	NP_065713.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MRS2	ENST00000378386.8	c.607A>G	p.Lys203Glu	missense_variant	6/11	1	NM_020662.4	ENSP00000367637	P1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Oct 05, 2021

The c.607A>G (p.K203E) alteration is located in exon 6 (coding exon 6) of the MRS2 gene. This alteration results from a A to G substitution at nucleotide position 607, causing the lysine (K) at amino acid position 203 to be replaced by a glutamic acid (E). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.20
BayesDel_addAF	Benign	-0.11	T
BayesDel_noAF	Benign	-0.39
CADD	Benign	22
DANN	Benign	0.79
DEOGEN2	Benign	0.064	.;T;.;T
Eigen	Benign	-0.14
Eigen_PC	Benign	0.076
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Benign	0.85	D;D;D;D
M_CAP	Benign	0.013	T
MetaRNN	Benign	0.18	T;T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.1	.;.;L;L
MutationTaster	Benign	1.0	D;D;N;N;N;N
PrimateAI	Uncertain	0.55	T
PROVEAN	Benign	0.67	N;.;N;N
REVEL	Benign	0.13
Sift	Benign	0.077	T;.;T;T
Sift4G	Uncertain	0.042	D;T;D;T
Polyphen		0.16, 0.043	.;.;B;B
Vest4		0.36
MutPred		0.55		.;.;Loss of ubiquitination at K203 (P = 0.013);Loss of ubiquitination at K203 (P = 0.013);
MVP		0.55
MPC		0.84
ClinPred		0.49	T
GERP RS		6.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.098
gMVP		0.34

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.030		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr6-24415279;